The cost of bone replacement generally differs mainly because of the different materials of the femoral head, of which the two most commonly used specifications of the femoral head are divided into domestic and imported femoral heads. In general, the cost of an imported femoral head is about$30,000, while the cost of a domestic femoral head is about$15,000. In addition to the material cost of these bones, there are some other costs, which include the following: general anesthesia costs about$5,000, operating room costs about$5,000, surgical operation costs about$2,000, pre-operative auxiliary examinations and bed costs about$3,000, and post-operative medication costs about$3,000, so the material costs plus other costs are the total costs.